Algebra-Please help

I'm really stuck on these problems-
Simplify 6xy(3xy)^-2?

Simplify 12xyz^-2/8x^-2z

Thank you

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asked by Jessie

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    Posted by Jessie on Monday, October 18, 2010 at 3:48pm. I think I figured it out-please check I'm really stuck on these problems- Simplify 6xy(3xy)^-2? I think this is 2/3xy choices were 2/xy 3xy 2xy 2/3xy Simplify 12xyz^-2/8x^-2z
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